package com.leilei.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.leilei.oss.service.OssService;
import com.leilei.oss.utils.ConstandPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileInputStream;
import java.io.InputStream;
import java.util.UUID;

/**
 * @author leiguodong
 * @version 1.0
 */
@Service
public class OssServiceImpl  implements OssService {


    //上传头像到oss
    @Override
    public String uploadFileAvatar(MultipartFile file) {

        //工具类取值
        String endpoint = ConstandPropertiesUtils.END_POINT;
        String accessKeyId = ConstandPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret = ConstandPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName = ConstandPropertiesUtils.BUCKET_NAME;

        try {

            // 创建OSSClient实例。
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

            //获取上传文件输入流
            InputStream inputStream = file.getInputStream();

            //获取文件名称
            String filename = file.getOriginalFilename();

            //1、在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-","");

            filename = uuid+filename;

            //2、把文件按照日期进行分类
            //获取当前日期
            //使用工具类
            String datePath = new DateTime().toString("yyyy/MM/dd");

            //拼接
            filename = datePath + "/" +filename;

            //调用oss方法实现上传
            //第一个参数  Bucket名称
            //第二个参数  上传到oss文件路径和文件名称
            //第三个参数  上传文件输入流
            ossClient.putObject(bucketName,filename,inputStream);

            //关闭OSSClient
            ossClient.shutdown();

            //把上传之后的文件路径返回
            //需要把上传到阿里云oss路径手动拼接出来
            //https://education-leilei.oss-cn-beijing.aliyuncs.com/fashion.png


            String url = "https://"+bucketName+"."+endpoint+"/"+filename;

            return url;

        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}


